didn't see the length of the boat but a 40hp on that boat may be a bit underpowered. I have a 04 tracker PT 175 (the package type with carpet, etc) and have a 60 2smoke, w/PT, and my boat will run upper 20's to low 30's all day long at 5000 rpm or less. Cruises great at 27-29/gps.
Does this boat have the front/rear casting decks, livewell, 2 or 3 seats across at the console, etc ? If so, it very could be underpowered, but a test run will tell for sure.
I would want PT on a 40, I had a 50 rude and no PT 30 years ago when I was 30 yrs younger, and it didn't bother me then. Now it would for sure.